Home / 1,216,112.93-1,678,211.10-672,271.64

Finding the Fourth Proportional to 1,216,112.93, 1,678,211.10 and 672,271.64

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Solution

The fourth proportional to 1,216,112.93, 1,678,211.10 and 672,271.64 is: 927,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,112.93 : 1,678,211.10 = 672,271.64 : x
  2. Step 2: Convert to fraction form
    1,216,112.93/1,678,211.10 = 672,271.64/x
  3. Step 3: Cross multiply
    1,216,112.93x = 1,678,211.10 × 672,271.64
  4. Step 4: Simplify right side
    1,216,112.93x = 1,128,213,720,072.15
  5. Step 5: Solve for x
    x = 1,128,213,720,072.15/1,216,112.93
  6. Step 6: Final answer
    x = 927,721.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.